Do not pour any such product in your engine. If you have a blown head gasket the only fix is to replace the gasket. Those type products are only a temporary emergency fix.
The 2004 Honda Accord has an inline 4 engine.
The 2014 Honda Accord has an inline 4 engine.
The 2002 Honda Accord has an inline 4 engine.
The 2012 Honda Accord has an inline 4 engine.
The 2011 Honda Accord has an inline 4 engine.
The 2001 Honda Accord has an inline 4 engine.
The 2009 Honda Accord has an inline 4 engine.
The 2007 Honda Accord has an inline 4 engine.
The 2003 Honda Accord has an inline 4 engine.
The 2008 Honda Accord has an inline 4 engine.
The 2013 Honda Accord has an inline 4 engine.
The 2006 Honda Accord has an inline 4 engine.